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Further study on iterative control loop for aberration correction in imaging systems with single mode fibre aperture

M. R. NASIRIAVANAKI1, G. DOBRE2, M.-A. PAUN3,* , A. HOJJATOLESLAMI1, A. GH. PODOLEANU2

Affiliation

  1. Research and Development Centre, School of Biosciences, University of Kent, Canterbury, CT2 7PD, United Kingdom
  2. Applied Optics Group, School of Physical Sciences, University of Kent, Canterbury, CT2 7NH, United Kingdom
  3. Electronics Lab, EPFL (Swiss Federal Institute of Technology), CH-1015 Lausanne, Switzerland

Abstract

An iterative control system was designed for compensation of wavefront aberration utilizing a micromachined deformable mirror through simulated annealing algorithm. 37 elements within a deformable mirror are controlled individually in a closedloop to maximize the output optical intensity collected in a single mode aperture. In this paper, the design of the control system is explained comprehensively. The effect of the parameters involved on the achievable accuracy, computational load and speed of the algorithm are investigated. The shape of the mirror’s surface throughout the runtime of the algorithm is also monitored and analyzed..

Keywords

Optical fibre system optimization, Simulated annealing algorithm, Adaptive optics, Matlab, Mex file.

Submitted at: March 20, 2013
Accepted at: June 12, 2013

Citation

M. R. NASIRIAVANAKI, G. DOBRE, M.-A. PAUN, A. HOJJATOLESLAMI, A. GH. PODOLEANU, Further study on iterative control loop for aberration correction in imaging systems with single mode fibre aperture, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 5-6, pp. 530-538 (2013)